This is the first announcement for the workshop on Homotopy Type Theory and Univalent Foundations Oslo, Norway, 12 - 14 June 2019 https://cas.oslo.no/hott-uf/ Homotopy Type Theory and Univalent Foundations combines ideas and techniques from algebraic topology, logic, higher categories and computer science. As a fairly young subject it is still under dramatic development and sees vibrant activity. The workshop aims at bringing together researchers spanning the width of the field, complementing the concurrent TYPES conference https://cas.oslo.no/types2019/ with which it will share some plenary sessions. Tentative list of invited speakers: • Paolo Capriotti • Evan Cavallo • Liron Cohen • Eric Finster • Dan Grayson • Simon Huber • Nicolai Kraus • Paige North • Christian Sattler • Andrew Swan • Taichi Uemura • Liang Ze Wong For further information, see the home page https://cas.oslo.no/hott-uf/ Hope to see you in Oslo in June! The workshop is organised jointly by the Centre for Advanced Study at the Norwegian Academy of Science and Letters, and the University of Bergen. Best regards. Scientific Committee: • Benedikt Ahrens (University of Birmingham) • Thierry Coquand (Chalmers University of Technology & University of Gothenburg) • Bjørn Ian Dundas (University of Bergen) • Chris Kapulkin (University of Western Ontario) • Emily Riehl (Johns Hopkins University) Local organisers: • Marc Bezem (chair)(University of Bergen) • Bjørn Ian Dundas (University of Bergen) • Erna Kas (Utrecht University) • Camilla K. Elmar (Centre for Advanced Study) [For admin and other information see: http://www.mta.ca/~cat-dist/ ]